Every week when I inject my methotrexate, I have the most disgusting taste in my mouth for about 2 days. It is like a chemical taste, as I imagine a battery might taste. Is there any way to get rid of it? I've tried mouthwash, brushing my teeth, sucking a lifesaver, chewing mints and so far nothing seems to work. Does anyone have a good idea for getting rid of this disgusting taste? Thanks!